Index: firmware/App/Modes/SampleWater.c
===================================================================
diff -u -r16b79d9ec32acce57b5bb007fc19a5c891c7fff1 -r1277cbbe91938269ed25f77de56c49eefba43a56
--- firmware/App/Modes/SampleWater.c	(.../SampleWater.c)	(revision 16b79d9ec32acce57b5bb007fc19a5c891c7fff1)
+++ firmware/App/Modes/SampleWater.c	(.../SampleWater.c)	(revision 1277cbbe91938269ed25f77de56c49eefba43a56)
@@ -28,6 +28,9 @@
 
 // ********** private definitions **********
 
+/// DG restarted alarm persistent interval
+#define DG_RESTARTED_ALARM_PERSISTENT_INTERVAL         ( ( 5 * MS_PER_SECOND ) / TASK_GENERAL_INTERVAL )
+
 // ********** private data **********
 
 static BOOL sampleWaterStartRequested;                              ///< Flag indicates user has requested to start sample water.
@@ -36,9 +39,11 @@
 
 static SAMPLE_WATER_STATE_T currentSampleWaterState;                ///< Current state of sample water sub-mode.
 static BOOL sampleWaterResult;                                      ///< The result entered by user after testing water sample.
+static U32 dgRestartedPersistentCount;                              ///< Persistent count for DG restarted alarm.
 
 // ********** private function prototypes **********
 
+static void hasDGRestarted( void );
 static SAMPLE_WATER_STATE_T handleWaterSampleSetupState( void );
 static SAMPLE_WATER_STATE_T handleWaterSampleState( void );
 
@@ -202,6 +207,28 @@
 
 /*********************************************************************//**
  * @brief
+ * The hasDGRestarted function checks if DG has restarted.
+ * @details Inputs: DG operation mode and operation sub-mode
+ * @details Outputs: alarm if DG restarted
+ * @return none
+ *************************************************************************/
+static void hasDGRestarted( void )
+{
+    if ( ( DG_MODE_STAN == getDGOpMode() ) && ( DG_STANDBY_MODE_STATE_IDLE == getDGSubMode() ) )
+    {
+        if ( dgRestartedPersistentCount++ >= DG_RESTARTED_ALARM_PERSISTENT_INTERVAL )
+        {
+            activateAlarmNoData( ALARM_ID_DG_RESTARTED_FAULT );
+        }
+    }
+    else
+    {
+        dgRestartedPersistentCount = 0;
+    }
+}
+
+/*********************************************************************//**
+ * @brief
  * The handleWaterSampleSetupState function waits for filter flush period elapsed.
  * @details Inputs: flushTimerCounter
  * @details Outputs: none
@@ -218,10 +245,7 @@
         state = SAMPLE_WATER_STATE;
     }
 
-    if ( ( DG_MODE_STAN == dgOpMode ) && ( DG_STANDBY_MODE_STATE_IDLE == dgSubMode ) )
-    {
-        activateAlarmNoData( ALARM_ID_DG_RESTARTED_FAULT );
-    }
+    hasDGRestarted();
 
     return state;
 }
@@ -255,6 +279,8 @@
         cmdDGSampleWater( SAMPLE_WATER_CMD_STOP );
     }
 
+    hasDGRestarted();
+
     return state;
 }